@misc{indiciaeb9a8f9fc4590,
  title = {Plan of study for the Central Midwest Regional Aquifer System Analysis in parts of Arkansas, Colorado, Kansas, Missouri, Nebraska, New Mexico, Oklahoma, South Dakota, and Texas},
  author = {Donald G. Jorgensen and Donald C. Signor},
  year = {1981},
  doi = {10.3133/ofr81206},
  url = {https://pubs.usgs.gov/publication/ofr81206},
  note = {Source identifier: ofr81206}
}